Metal-working machine



y 8, 1929. F. E. MUNScHAUER 1,714,566

METAL WORKING MACHINE Filed Aug. 8, 1927 Patented May 28, 1929.

7 if; SATES FREDERICK E. MUNSOHAUER, 01-? BUFFALO, NEW YORK, ASSIGNOR TONIAGARA 1V[A' CHINE &, TOOL WORKS, OF BUFFALO, NEW YORK, A CORPORATIONOF NEW YORK.

METAL-WOBKING- MACHINE.

Application filed August 8, 1927. Serial 11 211,406.

This invention relates to a sheet metal working machine for beading,edging, turning and wiring sheet metal in the manufacture of articlesrequiring such work.

It is. the object of this invention to provide a machine of thischaracter in which the gearing is completely enclosed in a solid casingso as to protect the same from dirt and also to prevent operators fromgetting their fingers caught in the gearing and injured as frequentlyoccurs in machinery of. this type as heretofore constructed. In theaccompanying drawings:

Figure lis a vertical longitudinal section of a sheet metal workingmachine embodying my improvements. Figure 2 is an end view' of the same.Figure 3 is a vertical transverse seciton of the same taken on line 33,Fig.

1. Figures 4and 5 are perspectiveviews of the casing Oftllemachinei'viewed from opposite ends, respectively. Figure 6 is afragmentary horizontalsection, on a reduced scale, taken on line 6 -6,Fig. 1

Similar characters of reference indicate like parts in the severalfigures of the drawings I e I ,The enclosing casing of this machineforms the frame which supports the working parts and encloses some-ofthem. This casing is made principally in onesolid casting and comprisesa closed bottom 10 :having a downwardly projecting boss l1 whereby the Isame is mounted on a support, a front wall 12.

provided in its lower part with a fixedlower .front bearing 13 and afront opening 14 in its upper part, a rear wall 15 provided in its lowerpart with a fixed lower rear hearing 16, a closed top 17, and twosidewalls 18, 19, one of which has a side opening 20.

In the lower bearings is journaled a lower horizontal shaft 21 whichextends lengthwise through the lower part of the casing and is heldagainst lengthwise movement by a rearwardly facing shoulder 22 on thefront part ofthis shaft engaging with the front end of the lower frontbearing and a collar 23 secured to the rear part of the lower shaft andengaging with the rear end of the lower 'rearbearing. 1 v v I V WVithinthe upper front open ng is arrangeda vertieallymovable slide 24which isprovided with an upper front bear ng 25 1 and on its opposite verticaledgeswit-h flang'es26 whichengage with guideways 27 in the oppositevertical sides of the upper front opening.

In the upper-rear opening-is arranged a sleeve 28 which isprovided'with' a horizontal upper .rear bearing 29 mounted on the casingso as tobc capable of turning about;

This sleeve is ahorizontal transverse axis by means of transverse pivot.screws 30 working n threaded openings 31in the rear wall of the casingand engaging pivot seats in opposite sides of the sleeves 28. Clampingnuts 32 are applied to the pivot screws and bear against'the outer sideof the casing for holding the pivot screws'in position after-adjustment.In theup per front-and rear bearings an upper shaft 33is journaled whichextends through the upper part of the casing. These shafts are compelledto turn in unisonby upper and lower intermeshing gear wheels 34, 35,which are arranged within the casir'ig and are secured respectively tothe upper and bearing On the front ends of the shafts outside of thecasing, are mounted [co-operating rolls I 39, 40, the peripheries ofwhich maybe of any suitable formation .to produce beading, "edging,turning-or wiring on 'sheet. metal for various purposes. Although theserolls may be secured to the shafts in variousw'ays it [is preferable toemploythe r'n'eansshown in" the drawings which consist of an externallythreaded shanlr41 onthe front end ofeach shaft engaging with aninternally threaded opening 42 in the hub ofthe respect ve roll and aforwardly facing shoulder 43 on the shaft engaging with the rear endofs'aid hub, and a clamping screw 44 working in a threaded opening 45inthe front end of the shaft andhaving a head 46 at its front end whichengages with the front end of the hub ofthe respective roll. The trendof the screw threads between thehubof e chmii ndits 6 shaft is in onedirection and the'trendof the screw threads between'the screw 44 andthis shaft is-in the opposite direction; in other words, one is rwhereby turning of each roll'i'n either direO- tion by means of itsshaft roll froinbecoming loose.

Turning: of

7 right" and-the other is left i i will prevent this g ,the, rolls in veither]- direction may be effected by a crank handle 47 the hub ofwhichmay be secured to the rear end of either shaft depending uponwhether the work in hand is to be moved forwardly or backwardly throughthe rolls and alsoto suit other conditions. i

Adjustment of the rolls lengthwise relatively to each other ispreferably effected by.

a s rin 48 surroundin the u or shaft and P a a: PP

engaging the rear side of i the upper gear wheel and the front side ofthe bearing sleeve, and an adjusting screw nut 49 arranged on thethreaded rear part of the upper shaft and engaging with the rear end ofsaid. sleeve. Upon turning the 'nut 49 in one direction or the other theupper shaft will be movedv lengthwise and thereby shift'the upper rollrelative to the lower roll for bringing the rolls into the properrelation. 7

Introduction of the gear wheels into the casing for mounting them on theshafts is effected through the side opening of the easing, which openingis normally closed bya cover or plate 50 secured to the casing over theside opening by means of screws 51.

, The rolls are moved toward and from each other to permit theintroduction of sheets of edge against a gage 54 in order to bring thesame into the right place. This gage may be placed adjacent to the endsof the rolls and on either sideof the same to suit to work .in'hand by,mounting'the same 'onfa support-i mg rod 55 which is adapted to slldeinelther pair of openings 56 or 57 in the casing'and held in positionafteradjustment by a set .serew 58, as shown inFigzfi.

' In this machine the gearing 1s completely enclosed so that IlO'CllI'tcan get to it to interfere with its operatlng or cause undue'wear andnormally the same can not be reached by the hands or fingers of theoperator thereby preventinginjury to the same.

I claim as my invention:

,1. A metal working machine comprising an enclosing casing provided inthe lower part ofits front and rear walls with fixed bear ings, a frontopening inthe upper part of its front wall having vertical g'uideways onits opposite sides,.arear opening in the upper part of its rear We l,anda sidew opening in one of its side walls,,a vertically movable slidearranged'in said front opening and guided in said ways and provided withan upper front bearing, a sleeve arranged in said upper rear opening andprovided with an upper rear bearlng, pivots arranged on the rear walland engaging opposite sides of said sleeve, a lower shaft journaled insaid lower bearings and extendlng'through sald casing, an upper shaftextending through said upper front and rear bearings and extendingthrough said casing, upper and lower intermeshing gear wheels arrangedwithin the casing and secured to said upper and lower shafts,respectively; co-operating rolls mounted on the front ends of saidshaftsoutside of said casingya spring interposed between the undersid'eof said slide and the lower end of the front opening in the casing,

an adjusting screw arranged in the upper front part of said casing andengaging with the upper end of said slide, aspring interposed betweenthe rear side of said upper gear wheel and the front-end of said sleeve,a screw nut arranged on the rear end of said upper shaft andengagingwith the rear end of said sleeve, and a cover secured'to saidcasing over the side opening thereof.

2; A metal working machine comprising an enclosing casing provided inthe lower part of its front and rear walls with fixed bearings, a frontopening in theu-pper part of its front wall having vertical guideways Ion its opposite sides, a rear opening in the upper part of its rearwall, and a side openmg n one of its side walls,-a vertically movableslide arranged in said front opening" and guided in said ways andprovided with an upper front bearing,- a sleeve arranged in said upperrear opening and provided with an upper rear bear1ng,p1vots arranged onthe rear wall and engaging opposite sides of said sleeve, aglower shaft1ournaled; 1n said lower bearings and extending through said casing, anupper shaft extending through said upper front and rear bearings andextending through said casing, upper and lower intermeshing. gear wheelsarranged within the casing and secured to said upper andj lower shafts,respectively; co-operating rolls mounted on the front ends of saidshafts outside of said casing, a spring interposed between theundersideof said slide and the lower end of the front opening inthe casing,

an adjustingscrew arranged in the upper front part of said casing andengaging with the upper end of said slide, a spring interposed betweenthe rear side of said upper gear wheel and the front end of said sleeve,

and a screw nut arranged on the rear end of said upper shaft andengaging with the rear end of said sleeve. 7 i

3. A metal working machine comprising an enclosing casing provided inthe lower part of its front and rear walls with fixed bearings, a frontopening in the u-ppenpart of its front wall having vertical guideways onits opposite sides, arear opening inthe upper part of its rear wall, anda side opening guided in said ways and provided with an upper frontbearing, a sleeve arranged in said upper rear opening and provided withan upper rear bearing, pivots arranged on the rear wall and engagingopposite sides of said sleeve, a lower shaft journaled in said lowerbearings and extending through said casing, an upper shaft extendingthrough said upper front and rear bearings and extending through saidcasing, upper and lower intermeshing gear wheels arranged within thecasing and secured to said upper and lower shafts, respectively;co-operating rolls mounted on the front ends of said shafts outside ofsaid casing, means for vertically adjusting the front end of said uppershaft; a spring interposed between said upper gear wheel and saidsleeve, and ascrew nut arranged on the upper shaft and engaging with therear end of said sleeve. 1

In testimony whereof I hereby affix my signature.

FREDERICK E. 'MUNSOHAUER. Q

